CottonWood 50 wicks are 6 inch inches long with a 20mm base and 6mm neck coated with High Temp Wax.

Cottonwood is a braided flat wick constructed of 100% natural fibers. This
newest generation of wick is specially engineered to bring the benefits of a
wider based flame with the consistency that only a braided wick can
provide. This wick is designed to get the heat of the flame closer to the
edges of the jar creating the opportunity to use larger vessels or tougher
to burn formulations and still achieve a high percentage of candle
consumption.